Asparagus growers have several choices of herbicides for control of emerged weeds. The synthetic auxin herbicides 2,4-D (Formula 40, Embed Extra) and dicamba (Clarity) are effective against many broadleaf annuals and perennials. They also can injure asparagus plants if there is too much contact with spears or fern.
How do you kill asparagus?
Using pruning shears, cut the plant down to the ground. Immediately after cutting it, apply herbicide to the cut section of the stems using a squirt bottle or a paint brush. For the best results, the herbicide should have a concentration of 8 percent triclopyr.
Does Roundup hurt asparagus?
Roundup is a Glyphosate-based product, meaning it will kill any actively growing plant it is sprayed on. If you spray it on asparagus beds with actively growing spears or ferns, you will kill the asparagus along with the weeds.
What do I fertilize asparagus with?
Asparagus can be fertilized in early spring before the spears emerge. An application of 1 to 1.5 pounds of an all-purpose garden fertilizer, such as 10-10-10, per 100 square feet should be adequate. Asparagus can also be fertilized after the last harvest in June.
Does trimec kill asparagus?
Answer: Gordons Trimec Classic Broadleaf Herbicide should not be used around edible vegetation. The vegetable should not be consumed if treated.
What herbicide is safe for asparagus?
Paraquat (Gramoxone Inteon) and glyphosate (Roundup) can be used as preplant or preemergence treatments to control emerged weeds before planting or before asparagus emergence. Make sure the emerged asparagus is not contacted by these herbicides or the plants will be killed.
What herbicide can you use on asparagus?
Asparagus growers have several choices of herbicides for control of emerged weeds. The synthetic auxin herbicides 2,4-D (Formula 40, Embed Extra) and dicamba (Clarity) are effective against many broadleaf annuals and perennials. They also can injure asparagus plants if there is too much contact with spears or fern.
How do you get rid of weeds in asparagus beds?
Glyphosate is systemic and works best at controlling perennial weeds. It can be broadcast over the entire planting area in early spring before new asparagus grown emerges or after the last harvest. Snap all spears 1/2 inch below the soil line, so no spears are above ground, then overspray the planting area.
When should I burn my asparagus?
In spring, it is best to remove them from the field and burn or compost them elsewhere in order to minimize asparagus insect pests like asparagus beetles and pathogens that have been overwintering in the ferns.
How do you rejuvenate an asparagus bed?
Use an organic fertilizer in the early spring, before spears begin to emerge, to give plants a boost. Apply nitrogen after harvesting is finished to encourage foliage growth. You can also fill in the gaps between old plants with some young, fresh roots. You will end up with a nice, solid bed in a few years.
How do I grow bigger asparagus?
In order to grow thicker asparagus, you will need to cultivate the older stems and encourage them to age and grow bigger than their slim counterparts. Another good tip for strong, healthy, fat stems is to ensure that the plant is getting enough nutrients.
How do you make asparagus grow better?
Choose a fertile, sunny, well-drained site with soil that holds moisture well. Late spring frosts can kill emerged spears, so find an area that is not low-lying or exposed to frost. Asparagus plants have deep root systems. Avoid areas with shallow soils, or soils prone to water-saturation.
Will Roundup kill asparagus fern?
The best weed killer for asparagus plants is a systemic herbicide containing glyphosate. Roundup is absorbed through the leaves and works down to the root, killing the entire plant.
How long does it take for 2,4-D to kill dandelions?
2, 4-D takes 14 days to work but weeds will start to show signs of dying such as wilting, leaves turning brown, stunted growth, and dying 48 hours after application. If you apply 2,4-D with a surfactant, the results may show sooner because it will be absorbed more effectively by the target plants.
Can you put rock salt on asparagus?
Asparagus plants will thrive in soil with high salt content, unlike many garden vegetables. It does not need salt to grow, however. Putting salt on asparagus plants can damage the plants and reduce the yield.
How long does an asparagus bed last?
The patience is well worth it, though, as asparagus beds can be productive for 15, 20, sometimes up to 30 years. Because asparagus stays productive for so long, it’s important to plant the best variety available for your area.
Can you till over asparagus?
Because it is a perennial, tilling around the asparagus bed is not possible without destroying the crop, so you need to use other weed control methods. Pulling weeds by hand is an option, but prevention is the key to saving time and energy.
How do you remove quack grass from asparagus?
Glyphosate. (The product in original Roundup and other brands.) Can be useful for treating thistles, quackgrass and others. Two easiest times to apply: (1) in early spring, before asparagus spears emerge from the ground, spray any weeds that are actively growing.
What is best mulch for asparagus?
Straw, pine needles, pine shavings or bark mulch work well as mulch choices. Avoid using dyed mulches (black or red). Avoid using synthetic mulches like black plastic or landscape fabric.
Is Miracle Grow good for asparagus?
If you are looking for an all-around great option for asparagus then I recommend the Miracle-Gro All Purpose Plant Food. This is one of the Best Asparagus Fertilizers EVER! This fertilizer instantly feeds providing bigger, better asparagus. You can apply it every two weeks with a garden feeder.
How deep do asparagus roots go?
Asparagus roots grow to an astonishing size of 5–6 feet (1.5–1.8 meters) in diameter and 10–15 feet (3–4.5 meters) deep. These plants, sometimes mistakenly called asparagus ferns, are also highly invasive. For this reason, it’s sometimes pejoratively referred to as a perennial weed.
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